package com.neuedu.action;

import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.alibaba.fastjson.JSONObject;
import com.neuedu.model.UserMessage;
import com.neuedu.model.Users;
import com.neuedu.service.UserMessageService;

@Controller
@RequestMapping("/usermessage")
public class UserMessageAction {
	@Autowired
	private UserMessageService userMessageService;
	
	
	@RequestMapping("add")
	public void addUserMessage(UserMessage userMessage,
				HttpServletRequest request,HttpServletResponse response) throws Exception{

		//调用业务逻辑层进行处理
		int res=userMessageService.addUserMessage(userMessage);
		System.out.println(res);
		Map<String, Object> map=new HashMap<String, Object>();
		if(res>0){
			map.put("success", true);
		}else{
			map.put("success", false);
			map.put("errorMsg", "Save user fail !!!");
		}
		String str=JSONObject.toJSONString(map);
		response.getWriter().write(str);
		
	}
	
	
	@RequestMapping(value="update")
	public void updateUsers(UserMessage userMessage,
			HttpServletRequest request,HttpServletResponse response) throws Exception{
		int res=userMessageService.updateUserMessage(userMessage);
		Map<String, Object> map=new HashMap<String, Object>();
		if(res>0){
			map.put("success", true);
		}else{
			map.put("success", false);
			map.put("errorMsg", "update user fail !!!");
		}
		String str=JSONObject.toJSONString(map);
		response.getWriter().write(str);
	}
	
	@RequestMapping(value="delete")
	public void deleteUsers(Integer userNo,
			HttpServletRequest request,HttpServletResponse response) throws Exception{
		System.out.println("删除用户");
		int res=userMessageService.deleteUserMessage(userNo);
		Map<String, Object> map=new HashMap<String, Object>();
		if(res>0){
			map.put("success", true);
		}else{
			map.put("success", false);
			map.put("errorMsg", "update user fail !!!");
		}
		String str=JSONObject.toJSONString(map);
		response.getWriter().write(str);
	}
	
	
	
	@RequestMapping(value = "/findAll")
	public void findAll(HttpServletRequest request,HttpServletResponse response)throws Exception{
		//从客户端接收easyui发送过来的分页控制参数
		//page指查询第几页，rows指每页查询多少条---这两个参数由easyui进行计算并发送到服务端
		int page=Integer.parseInt(request.getParameter("page"));
		int rows=Integer.parseInt(request.getParameter("rows"));
		
		
		Map<String, Object> map=new HashMap<String, Object>();
		Map<String, Object> pageMap=new HashMap<String, Object>();
		pageMap.put("startPage", (page-1)*rows);//从第几条数据开始查询
		pageMap.put("endPage", rows);//每页查询多少条记录
		
		//进行分页查询
		List<UserMessage> u=userMessageService.findAll(pageMap);
		
		//进行查询记录总数，把记录总数发送给easyui，用于分页计算与控制
		int total=userMessageService.countUserMessage();
		
		//前后端分离的程序结构大部分会使用json数据结构进行数据传递（也有使用xml传递的）
		map.put("rows", u);
		map.put("total", total);
		//使用阿里巴巴的fastjon把java对象转换成json字符串
		String str=JSONObject.toJSONString(map);
		//使用servlet技术，把json数据字符串从服务求发送到浏览器客户端（easyui）,由easyui进行数据显示
		response.getWriter().write(str);
	}
	
	@RequestMapping(value = "/login")
	public void login(UserMessage userMessage,
			HttpServletRequest request,HttpServletResponse response)throws Exception{

		UserMessage ret=userMessageService.findUserMessageName(userMessage);
		
		if(ret!=null) {
			//登陆成功，记录用户session值，并跳转到Dao管理首页
			request.getSession().setAttribute("LOGIN_USER", ret);
			response.sendRedirect(request.getContextPath()+"/index.jsp");
		}else {
			response.sendRedirect(request.getContextPath()+"/login.jsp");
		}
	}
	
	@RequestMapping(value = "/logout")
	public void logout(HttpServletRequest request,HttpServletResponse response) throws IOException{
		request.getSession().invalidate();
		
		response.sendRedirect(request.getContextPath()+"/login.jsp");
	}
	
}
